/******************************************************************************
 * Copyright (C) 2015  671643387@qq.com
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *****************************************************************************/

#ifndef UCOP_DATA_REL_SQLOPERATION_H_
#define UCOP_DATA_REL_SQLOPERATION_H_

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif

#include <memory>
#include "Ucop/System/Mutex.h"
#include "Ucop/Util/LockedQueue.h"
#include "Ucop/Data/Rel/Callbacks.h"


namespace Ucop {
namespace Data {
namespace Rel {
    class SqlConnection;
    class SqlStmtParameters;

    class SqlOperation
    {
    public:
        virtual ~SqlOperation(){}
        virtual bool Execute(SqlConnection *) = 0;
    };

    class SqlPreparedRequest : public SqlOperation
    {
    public:
        SqlPreparedRequest(int _Index, SqlStmtParameters* _Arg);
        virtual ~SqlPreparedRequest(void);

        bool Execute(SqlConnection* _Conn) override;

    private:
        const int _Myindex;
        std::auto_ptr<SqlStmtParameters> _Myparam;
    };


    class SqlResultQueue : public Util::LockedQueue<IQueryCallback*, System::Mutex>
    {
    public:
        SqlResultQueue(void) {}
        void Update(void);
    };

    class SqlQuery : public SqlOperation
    {
    public:
        SqlQuery(const char* _Sql, IQueryCallback* _Callback, SqlResultQueue* _Queue)
            : _Mysql(_Sql), _Mycallback(_Callback), _Myqueue(_Queue) {}
        ~SqlQuery(void) {  }
        bool Execute(SqlConnection* _Conn) override;

    private:
        const std::string _Mysql;
        IQueryCallback* _Mycallback;
        SqlResultQueue* _Myqueue;
    };

}}}

#endif // UCOP_DATA_REL_SQLOPERATION_H_
